What is reanalysis of weather data?

What is reanalysis of weather data?

Reanalysis data provide the most complete picture currently possible of past weather and climate. They are a blend of observations with past short-range weather forecasts rerun with modern weather forecasting models. They are globally complete and consistent in time and are sometimes referred to as ‘maps without gaps’.

What is a reanalysis dataset?

Reanalysis datasets are created by assimilating (“inputting”) climate observations using the same climate model throughout the entire reanalysis period in order to reduce the affects of modeling changes on climate statistics.

What is ERA5 reanalysis data?

ERA5 is the fifth generation ECMWF atmospheric reanalysis of the global climate covering the period from January 1950 to present. ERA5 is produced by the Copernicus Climate Change Service (C3S) at ECMWF. ERA5 provides hourly estimates of a large number of atmospheric, land and oceanic climate variables.

What reanalysis means?

Definition of reanalysis : the act or an instance of analyzing (something) again : repeated or renewed analysis Budgett said some samples from the 2012 London Olympics are also being retested now on a targeted basis ahead of the Rio Games, although most are being saved for later reanalysis. —

What is reanalysis in linguistics?

Reanalysis (linguistics) or folk etymology, change in a word or phrase resulting from the replacement of an unfamiliar form by a more familiar one. Rebracketing, a process where a word originally derived from one source is broken down into a different set of factors.

What is reanalysis climate?

What is climate reanalysis? A climate reanalysis gives a numerical description of the recent climate, produced by combining models with observations.

How do I get ERA5 data?

ERA5 data can be downloaded through the CDS either via the CDS web interface or programmatically using the CDS API service. Any data in the CDS catalogue can be accessed in these two ways. And since such data is kept online, access is usually fast. Some parts of the ERA5 dataset are not listed in the CDS catalogue.

What is reanalysis in morphology?

Morphological reanalysis is the treatment of some set phrase as a single morpheme for purposes of stress assignment, pluralization, etc. For instance, “passer by” is semantically transparent, and theoretically composed of two morphemes. A passer by is one who passes by.

What is a climate reanalysis?

How do I download ERA5 data?

3 – Downloading online ERA5 family data through the CDS web interface

1. Go to the C3S climate data store (CDS).
2. Type ‘ERA5’ in the search box.
3. Follow the ERA5 dataset title link of interest (there will be many more hits).
4. Currently there are eight online ERA5 and two ERA5-Land catalogue entries.

How can I download merra data?

MERRA-2 data downloading services:

1. Download Method=>Get Original Files: to download the unmodified original files.
2. Download Method=> Get File Subsets using OPeNDAP: to download geospatially subsetted retions of selected variables in netCDF or ASCII format.

What does ERA5 mean?

ECMWF Reanalysis 5th Generation
Acronym ERA5 Name ECMWF Reanalysis 5th Generation Description. ERA5 is the fifth generation of ECMWF atmospheric reanalyses of the global climate (http://climate.copernicus.eu/products/climate-reanalysis ).